Home / 1,418,711.38-2,128,423.50-407,835.16

Finding the Fourth Proportional to 1,418,711.38, 2,128,423.50 and 407,835.16

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Solution

The fourth proportional to 1,418,711.38, 2,128,423.50 and 407,835.16 is: 611,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,711.38 : 2,128,423.50 = 407,835.16 : x
  2. Step 2: Convert to fraction form
    1,418,711.38/2,128,423.50 = 407,835.16/x
  3. Step 3: Cross multiply
    1,418,711.38x = 2,128,423.50 × 407,835.16
  4. Step 4: Simplify right side
    1,418,711.38x = 868,045,949,174.97
  5. Step 5: Solve for x
    x = 868,045,949,174.97/1,418,711.38
  6. Step 6: Final answer
    x = 611,855.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.